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Subject Topic: hi there help pls join 110 battery to 85
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28/9/2011 at 6:44pm
 Location: south yorkshire
 Outfit: elddis hurricane xl and discovery
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can i join 110 battery to 85 battery so i can everything through them an not have v on its own an lights/pump ect through other one ??


28/9/2011 at 6:53pm
 Location: None Entered
 Outfit: Coachman Pastiche
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Not sure what you mean but it is possible to connect two batteries together, positive to positive and negative to negative if that's what you mean. In practice though I would prefer to swap them over when one goes flat so that I have a better idea of my power usage and if I change a battery over I know I need to reduce my consumption. You can get the flat battery recharged while using the other one too rather than get two flat batteries.

Apparently, and I don't know how accurate this is, connecting a 110 ah battery and an 85 ah battery will not give 195 ah either, although technically it should.


28/9/2011 at 7:13pm
 Location: Chesterfield Derbyshire
 Outfit: swift challenger 500 se Kia Sorento SX
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If you Join Two Batterys Together You Will Get 24 Volts


28/9/2011 at 7:29pm
 Location: None Entered
 Outfit: Fleetwood Rhapsody Santa Fe
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You will only get 24 volts if you connect in series. Connect in parallel and you will have 12v and incresed amp hours

http://www.zbattery.com/Connecting-Batteries-in-Series-or-Parallel



28/9/2011 at 8:11pm
 Location: Essex
 Outfit: None yet considering a
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You should really have the same ah batteries as well if joining them together. so 2 x 110ah or 2 x 85ah.

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Mark


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28/9/2011 at 8:43pm
 Location: West Mids
 Outfit: Swift Ace Statesman & X-Trail 2.0
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Do I assume you don't use EHU at all and reliant on the batteries?

Although it's possible, I'd avoid doing unless both batteries are the same capacity (as mentioned). You'll have an imbalanced discharge for one of the batteries and it may drop too deep to recover properly and fail early.

If you do need two seperate batteries, I'd continue using them as you are.

-------------
Paul

Every day's a school day!


28/9/2011 at 8:46pm
 Location: south yorkshire
 Outfit: elddis hurricane xl and discovery
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yea we on no ehu site, thx for any help


28/9/2011 at 8:55pm
 Location: Norwich
 Outfit: Citroen Relay Campervan
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I've got a 110A/h and 85A/h connected in parallel and had no problems using them together.

-------------
Cheers
John


28/9/2011 at 8:57pm
 Location: south yorkshire
 Outfit: elddis hurricane xl and discovery
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thx francophile i need to run tv. pump, lights, an radio will this be ok ??


29/9/2011 at 9:25am
 Location: Lancashire
 Outfit: Caravan now Sold
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http://www.marxrv.com/12volt/12volt.htm

-------------
the only silly question is the one you do not ask.



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